282results about How to "Accurate perception" patented technology

The invention discloses a network security situation perception system and a method based on multilevel multi-angle analysis, wherein the system comprises a data gathering module, a network security situation understanding module, a network security situation estimation module and a network security situation forecasting module. The method for achieving the network security situation perception system comprises the following steps: firstly, doing statistical data fusion and association analysis to data in the aspects of assets, intimidation and vulnerability of a network system gathered by a sensor, and getting normalized data, secondly, analyzing the normalized data after the fusion of the step one, and doing network security situation special subject estimation, thirdly, doing network security situation factor estimation according to the normalized data obtained in the step one and the estimation result of the step two, fourthly, doing the integral estimation of network security situation according to the estimation result of the step three, fifthly, doing network security situation forecast according to the estimation result of the step D. The invention analyzes the security situation of network from multi levels and multi angles, and guarantees a result perception system to be more accurate and comprehensive.

The invention is a polarized sunglass lens that utilizes a multiband contrast enhancer comprised of three rare-earth oxides to provide relatively high peak transmittance in portions of the red and green spectrum, relatively lower transmittance for the blue spectrum, and very low transmittance for the UV spectrum. The lens provides enhanced perception of colors, heightened contrast, and improved visual acuity. The inclusion of vanadium pentoxide in the lens provides attenuation of the UV spectrum, thus protecting the user's eyes and the internal layers and colorants from UV-induced damage. The front lens element can be either the multiband contrast enhancer or a photochromic lens element.

Navigation through a network of body passages, such as through the airways, is improved by a method of displaying information which provides a fly-through visualization of the passageway. As landmarks or waypoints are passed, the view changes to a next segment in a planned pathway to a target. Such a visualization technique avoids tunnel vision, such as that encountered while using real-time endoscopes.

An embodiment of the invention provides a main control intelligent lamp. The main control intelligent lamp mainly comprises a controller and a sensor unit; the sensor unit comprises a human body infrared sensor, a microwave sensor and a sound sensor; and the controller performs a comprehensive judgment according to an electric level signal transmitted by the human body infrared sensor, an electrical signal transmitted by the microwave sensor and a sound signal transmitted by the sound sensor, obtains whether a person is in external environment, and obtains state information of the person. The main control intelligent lamp can actively perceive whether the person is in the external environment, person states such as whether the person is active, and image, video, brightness, sound, gas, temperature, humidity, touch and other information of the external environment, and the main control intelligent lamp can achieve accurate perceptions of states of the person and the external environment, so electric control operation, for example, lamp light, an air-conditioning and an exhaust fan are started or closed, can be intelligently and accurately performed according to an actual condition of the external environment.

Disclosed is an emotion recognition apparatus and method thereof which enables perception of a user's emotional state by monitoring one or more of his or her physiological signals. The emotion recognition apparatus comprises a feature analyzer adapted to analyze features of the physiological signals acquired from a user and generate feature values, a subtractor adapted to obtain differences between the feature values generated by the feature analyzer and feature values used as a standard to perceive an emotional state of the user, and an emotion classifier adapted to analyze the differences obtained by the subtractor and classify an emotion into a plurality of emotional categories so as to perceive an emotional category exhibiting the greatest intensity to be the emotional state of the user.

An apparatus for use in image display, of projecting a light beam onto a retina of a viewer, to thereby allow the viewer to perceive an image, is disclosed. The apparatus is constructed to include: a light emitter emitting a light beam; a scanner scanning the light beam emitted by the light emitter; an optical system receiving the light beam scanned by the scanner as an incoming light beam, and emitting the received incoming light beam as an outgoing light beam, such that, upon modulation of the light beam with respect to a traveling direction of the light beam, the outgoing light beam is directed to a pupil of the viewer; and a curvature compensator compensating a wavefront curvature of the incoming light beam.

A guide wire assembly (1) includes a guide wire (2) having a main body section (22), a front-end angular section (21) and a base-end angular section (23). The guide wire assembly (1) further includes a storage section for storing the guide wire (2) inside a hollow section of a substantially annularly wound pipe body (51). The base-end angular section (23) is arranged so that it is dynamically stabilized in elasticity, in a state in which a bent direction thereof is aligned with a direction of curvature of the pipe body (51). When the base-end angular section (23) passes through the pipe body as the guide wire (2) is delivered from the storage section (5), a state is maintained in which the bent direction of the base-end angular section (23) is aligned with the direction of curvature of the pipe body (51), and the direction of the front-end angular section (21) is maintained at a predetermined direction with respect to the storage section (5).

The invention discloses a route selection algorithm applied to a heterogeneous network of a multi-level satellite communication system, in which a cognitive routing algorithm based on learning is adopted and the problem of non-uniform link selection due to many end-to-end links in the heterogeneous satellite links is solved. Each link utilization rate value is cached in the route selection process, and by analyzing the link utilization rate at different moments and introducing a smoothing factor to predict the link utilization rate of the next moment, the conditions such as congestion time delay and the like around can be quickly and accurately sensed so as to achieve the aim of adaptively selecting the routing path, thereby balancing the whole load of the global heterogeneous network. The multi-layer satellite communication system comprises two satellites under a high orbit and a satellite on a medium-low orbit.

Provided is an image generation device that can generate a monitor display image suited for monitoring surroundings of a vehicle, even from an image captured using a wide-angle lens, such as a fisheye lens. Such an image generation device includes: an input unit to which a captured image of the surroundings of the vehicle is input, the captured image being acquired by a vehicle-mounted camera equipped with a wide-angle lens and being distorted; a setting unit that sets specific correction values for respective regions of the captured image that are separated by a reference line at a predetermined interval along a vertical direction of the captured image, the specific correction values being calculated based on a reference correction value of the wide-angle lens along the vertical direction of the captured image, the reference line extending in a horizontal direction of the captured image; an execution unit that applies distortion correction to the captured image using the specific correction values set by the setting unit; and an output unit that outputs, to a monitor, the captured image to which the distortion correction has been applied by the execution unit.

The invention provides a direct dragging teaching system and method based on a force sensor and used in the surgical operation. The system comprises an industrial personal computer, a robot controller, a robot, the six-dimensional force sensor and a tail end executor; the six-dimensional force sensor is used for collecting stress information of the tail end executor when a doctor drags the tail end executor to do motion, the industrial personal computer carries out gravity compensation on the stress information, collected by the six-dimensional force sensor, of the tail end executor, the external force when the doctor drags the tail end executor to carry out motion is obtained, the industrial personal computer generates robot motion instructions according to the external force generated when the doctor drags the tail end executor to carry out motion, and the robot controller controls the robot to move according to the motion instructions. The multidimensional force sensor is additionally arranged on the tail end of the robot to transmit teaching intentions of the doctor, the robot is guided to move, through the gravity compensation, the gravity influence of the tail end executor isremoved, the doctor hand action force can be accurately perceived, and the flexible and accurate dragging teaching in the operation process is achieved.

An image processing apparatus includes a determining unit, a converter, and a display unit. The determining unit receives image data for three-dimensional display as input, and determines the three-dimensional display format corresponding to the input data. The converter converts the input data in accordance with the determination results from the determining unit. The display unit displays the converted results from the converter.

The invention relates to a method of generating a place-frequency map for accurate positioning of a cochlear implant whereby the place-frequency map is used to relate a physical position of the cochlear implant to a tonotopic map of the basilar membrane / spiral ganglion. The invention also relates to a method of electrically positioning of an already inserted cochlear implant within the cochlea to provide stimuli to only the parts of the cochlea that have reduced or no residual hearing.

The present invention provides an automatic driving test system based on road driving skills. The system comprises: a road test scene, an automatic driving test device and an automatic driving test site facility; the automatic driving test device is arranged on an automatic driving vehicle required to be tested, namely a test vehicle, and comprises a road traffic signal collection system and a vehicle signal collection system; the automatic driving test site facility comprises a test vehicle location facility, a test project triggering device and a signal transfer device. Further, the road traffic signal collection system communicates with a test center through a wireless transmission mode to receive a test task of the test vehicle at present and traffic environmental information associated with the test task; and the vehicle signal collection system can communicate with the automatic driving vehicle to read the information of the automatic driving vehicle. The automatic driving test system is used for test and verification of safety of the automatic driving vehicle for road driving and provides guidance for technology research and development, road test permission and product access certification of automatic driving vehicles.

The invention discloses an objective positioning and classifying algorithm based on deep learning. The algorithm comprises the following steps: S1, inputting a picture into a first network and outputting a series of objective positioning frames and scores; S2, inputting a picture and a series of sub windows into a second network; S3, forwardly propagating the networks to a last convolution layer to generate a characteristic pattern; S4, performing coordinate transformation on the sub windows by using a zooming coefficient in order to map the coordinates to the characteristic pattern; S5, acquiring a characteristic from the characteristic pattern by using the zoomed sub windows and pooling the characteristic to a regular size; S6, classifying the pooled data to obtain a classification result and a score of an area; and S7, inputting the objective positioning frames and the classification result of the area into a classifier to carry out classification, and outputting the type and the coordinates of the objective. The algorithm may extract characteristics, classifies the objectives, performs positioning and identification by using a unified network, and greatly increases calculating speed.

Disclosed is technology relating to a device and method for detecting bypass access and account theft. In the method for detecting bypass access from a client to a server according to the present invention: a server receives access data comprising data about hops on the route from the client to the server by using a route tracing agent; region data is extracted from the IP address(es) of the hop(s) comprised in the received access data; a judgment is made as to whether the extracted region data belongs to a pre-set access-permitted region; and the server detects whether the access from the client is bypass access, in accordance with the judgment results.

The invention discloses an active anti-collision system based on an electric automobile and a control method thereof. The active anti-collision system comprises a man-machine interface unit, an information collecting unit, a central processing unit and an executing unit. An electronic control hydraulic brake technology is adopted in the system, a fusion algorithm is adopted to recognize the target according to laser radar and visual sensor signals, safety early-warning distance and safety brake distance are calculated based on road adhesion coefficients, and finally compound decision control execution unit is used for early-warning or active brake. The system is capable of greatly improving the reliability of automobile collision prevention and effectively promoting traveling safety.

A projector capable of performing color adjustment through a display mode which reduces the occurrence of color contrast phenomena. A main microcontroller (70), which determines a boundary position for dividing the display into a first area and a second area, and a switch control unit (56) switch the output of an output selector (55) according to pixel positions, so that image signals of a part of an image to be displayed in the first area are converted by a color conversion LUT (52) before being output, while image signals of a remaining part of the image to be displayed in the second area are directly output.

The invention provides a method and a device for local zoom imaging, and relates to the field of imaging. The method comprises the steps of determining a gazing object of the eyes; determining a corresponding sub-area of an imaging lens group according to the gazing object, wherein the imaging lens group is used for carrying out zoom imaging on the gazing object and comprises a plurality of sub-areas whose zooming characteristics are adjustable; and determining zooming parameters of the corresponding sub-area according to the gazing object. The method and the device provided by the invention can zoom imaging of the gazing object on the eye fundus of a user in a local zoom mode, thereby avoiding changes in overall visual field of the user, enabling the user to observe the gazing object conveniently, and being capable of have a correct perception of the surrounding environment at the same time.

User interface apparatus, and an associated method, for facilitating viewing of display indicia by a user of reduced visual acuity. A user display is divided into a first part and a second part. A screen manager operates to cause display at the first part of the user display a sequence of characters in a regular, or small display size. One or more of the characters of the sequence are also caused by the manager to be displayed at the second part of the user display. When displayed at the second part, the character is displayed in enlarged size to facilitate its perception by the user.

A hybrid vehicle 1 includes as drive sources an internal combustion engine 20, to which fuel stored in a fuel tank 21 is supplied, and a second M / G 32, to which electricity stored in a battery 40 is supplied. The vehicle 1 also includes a battery charger 70 for charging the battery 40 from the outside of the vehicle 1. For each of a plurality of refuelings to the fuel tank 21, the history of the time of refueling and the amount of refueling are stored. Based on the history, the degree of deterioration of fuel in the fuel tank 21 is calculated.

An apparatus for projecting modulated light onto a retina of a viewer, to thereby allow the viewer to perceive a display object via a virtual image is disclosed. The apparatus is configured to include: an emitter emitting light; a modulator modulating the light; and a controller controlling the emitter and the modulator for generating virtual images to be perceived by the viewer in an image display field. The controller is operated, such that a principal virtual image defining the display object is perceived by the viewer in a principal display region of the image display field, and such that an auxiliary virtual image is perceived by the viewer together with the principal virtual image, in an auxiliary display region which is located in the image display field in a predetermined positional relationship with the principal display region, as viewed from the viewer.

The embodiment of the invention discloses a method and device for determining the movement information of a to-be-detected object. According to the embodiment of the invention, the method comprises the steps: obtaining an N-th image frame, collected by a camera apparatus, of the to-be-detected object; determining the corresponding relation between mark point images and physical mark points according to the mark point image in the N-th image frame; and determining the movement information of the to-be-detected object in N-th image frame at a corresponding moment according to the position information of all physical mark points and all mark point images. According to the invention, the method determines the movement information of the to-be-detected object based on the position information of the mark point images and the position information of the physical mark points through the corresponding relation between the mark point images and the physical mark points. Compared with a method for obtaining a rotating attitude through employing a gyroscope or other sensors in the prior art, the method can effectively determine the translation amount of the to-be-detected object, senses the movement state of the to-be-detected object more accurately and quickly, is higher in instantaneity, and remarkably improves the actual experience of a user.

The invention discloses a satellite ground micro-vibration test system. The satellite ground micro-vibration test system comprises a high-sensitivity sensor used for extracting vibration signals near a disturbance source or a load, an anti-aliasing filter used for performing anti-aliasing filtering on the vibration signals extracted by the high-sensitivity sensor to form piezoelectric signals, a high-modulus conversion rate acquirer used for generating the piezoelectric signals into digital signals and a high-precision controller used for controlling display, storage and analysis of the digital signals. According to the invention, the high-sensitivity sensor realizes small-magnitude acquisition of the vibration signals, digital signals are generated through a high-precision data acquisition card after the vibration signals are subjected to the anti-aliasing filtering, and subsequent process is performed to provide efficient input for the subsequent satellite vibration reduction or vibration isolation and environmental test and also realize verification of vibration reduction or vibration isolation performance. Therefore, the satellite ground micro-vibration test system, disclosed by the invention, has the advantages of satisfying demands on acquisition and analysis of micro-vibration signals and being of great importance in improving control precision and stability of a satellite platform.

A rear-view mirror for a vehicle with a set of indicator lights,It comprises a main mirror (G1) having a first field of view and a spotter mirror (G2) having a second field of view, placed at different levels and connected by a step or partition (St) and a first indicator light (Li1) in association with a light source (30), said indicator light issuing at least a light beam directed towards a driver eyes (Dv) intended to highlight or demarcate said spotter mirror (G2) making it easier the driver to focus on it in response of an action of the driver, detection of an approaching vehicle or a vehicle advancing, or in response to a turning maneuver without turning signalization and a second indicator light (Li2) activated in response to a light turn signal activator. The indicator lights (Li1) and (Li2) are located in said step of the spotter mirror, or near the frame of the mirror, in a shadow area (18a, 18b) so that the incident daylight (Ob1) or incident external light does not disturb the perception of said indicator lights (Li1), (Li2) by a driver.

The present invention relates to distance measuring method and equipment which consists of a stage that receives multiple signals reflected from the target of measuring through the operation of the shutter, a stage that calculates the phase difference between transmitting and receiving signals based on said multiple signals received at said different phases, and a stage that calculates the distance between said target of measurement and a distance measuring equipment based on said phase difference, and said multiple signals may be of same frequency and amplitude. Therefore, the phase difference between transmitting and receiving signals can be determined accurately and the distance to the objects can be accurately recognized.

The invention provides a panic crowd escape simulation method and is to simulate crowd escape characteristics under the panic condition truly. The method uses a social force model to carry out crowd modeling; according to the characteristics of the panic crowd, a new interaction force is invented, and a character model is introduced; and behavior characteristics of agents with different characters are simulated by adjusting the crowd simulation parameters. In the aspect of escape route planning technology, uniform grid technology is invented, so that Agent is allowed to sense the ambient environment more accurately, and route selection is various. In route planning, for the case that under a real scene, crowd visual fields are always blocked by barriers and the like, the partial visual field technology is invented to enable the crowd to only regard points in the visual field range as target points for navigation, thereby guaranteeing authenticity of the simulation.

The invention discloses a vehicle charging converter with high efficiency. The vehicle charging converter with high efficiency includes successively connected EMI circuit, a PFC circuit, an inversioncircuit, a rectification circuit, an output circuit and a control circuit, wherein the EMI circuit is used for reducing the influence of high frequency noise of the converter on the power grid; on thepremise of guaranteeing the quality of the input current, the PFC circuit can convert the single phase alternating current into the high voltage direct current; the inversion circuit converts the high voltage direct current into high frequency square wave which is adjustable in frequency; the rectification circuit performs rectification after performing transformer isolation of the rectificationcircuit to obtain stable direct current voltage; and finally the high frequency current ripple is filtered and then is output by the output circuit, and the control circuit completes acquisition, calculation and output of the controlled quantity of the converter, and then operating and protection of the vehicle charging converter can be realized. In the vehicle charging converter with high efficiency, the PFC circuit and the inversion circuit respectively use GaN HEMT and Si MOSFET as the main switch devices; by means of combination with the advantages of a wide-gap semiconductor device and atotem PFC topology, the vehicle charging converter with high efficiency has the advantages of being good in the grid side harmonic wave characteristic, being small in volume, being flexible in control, and greatly improving the conversion efficiency of vehicle charging.

A minimally-invasive endoscope operating forcep head comprises a first forcep arm, a second forcep arm, a first pin shaft, a second pin shaft and a pulling-pushing shaft. The head of the first forcep arm is designed to be a first driven tooth piece. The head of the second forcep arm is designed to be a second driven tooth piece. The tail end of the pulling-pushing shaft is designed to be a driving rack. The first pin shaft and the second pin shaft are arranged on the base circle centers of the first driven tooth piece and the second driven tooth piece respectively. The head of the first forcep arm and the head of the second forcep arm are connected with the first pin shaft and the second pin shaft in a sleeved mode respectively. The first driven tooth piece and the second driven tooth piece are both meshed with the driving rack. According to the minimally-invasive endoscope operating forcep head, the direct proportion relationship between forcep opening clamping force and operation force can be achieved, an operator can sense and control magnitude of clamping force accurately, and operation safety is improved.

In a vehicle steering apparatus, front wheels are controlled to be turned by a computer program processing. A displacement / torque conversion section 51 converts a steering angle θ into a steering torque Td that is in relation of exponential function. A torque / lateral-acceleration conversion section 52 converts into an anticipated lateral acceleration Gd based upon the steering torque Td. A turning angle conversion section 55 calculates target turning angles δd. A turning angle correcting section 61 obtains a slip angle β of a slip generated on a vehicle. Then, the turning angle correcting section 61 corrects the target turning angle δd based upon the obtained slip angle β, thereby calculating a corrected target turning angle δda. A drive control section 63 controls the steered wheels to be turned into the corrected target turning angle δda. According to this, a driver can correctly perceive the generated anticipated lateral acceleration Gd, whereby he / she can easily drive the vehicle.

The invention discloses a call quality test method, a call quality test device and a call quality test system. The call quality test method comprises the following steps of: sending double-tone multiple-frequency signals to a tested terminal; testing network call quality according to the received double-tone multiple-frequency signals returned by the tested terminal to obtain a call quality test result; and comparing the pre-stored call quality fault statistical data with the call quality test result to obtain a network call fault type. The call quality test method, the call quality test device and the call quality test system remotely and automatically test the user call quality after user network complaints, avoid manually processing the complaints, reduce the period of processing client complaints, process the call faults in time, avoid repeated complaints of clients, and acquire the fault type of the current test more precisely by comparing the test result with the historical callfault data.